CallingConventions 枚举
定义
重要
一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。 对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。
定义方法的有效调用约定。
此枚举支持其成员值的按位组合。
public enum class CallingConventions[System.Flags]
public enum CallingConventions[System.Flags]
[System.Serializable]
public enum CallingConventions[System.Flags]
[System.Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
public enum CallingConventions[<System.Flags>]
type CallingConventions = [<System.Flags>]
[<System.Serializable>]
type CallingConventions = [<System.Flags>]
[<System.Serializable>]
[<System.Runtime.InteropServices.ComVisible(true)>]
type CallingConventions = Public Enum CallingConventions- 继承
- 属性
字段
| 名称 | 值 | 说明 |
|---|---|---|
| Standard | 1 | 指定由公共语言运行时确定的默认调用约定。 将此调用约定用于静态方法。 例如，或虚拟方法使用 |
| VarArgs | 2 | 指定具有变量参数的方法的调用约定。 |
| Any | 3 | 指定 |
| HasThis | 32 | 指定实例或虚拟方法（而不是静态方法）。 在运行时，调用的方法作为第一个参数（指针 |
| ExplicitThis | 64 | 指定签名是函数指针签名，表示对实例或虚拟方法（而不是静态方法）的调用。 如果 |
示例
using System;
using System.Reflection;
using System.Security;
public class MyClass3
{
public MyClass3(int i) { }
public static void Main()
{
try
{
Type myType = typeof(MyClass3);
Type[] types = new Type[1];
types[0] = typeof(int);
// Get the public instance constructor that takes an integer parameter.
ConstructorInfo constructorInfoObj = myType.GetConstructor(
BindingFlags.Instance | BindingFlags.Public, null,
CallingConventions.HasThis, types, null);
if (constructorInfoObj != null)
{
Console.WriteLine("The constructor of MyClass3 that is a public " +
"instance method and takes an integer as a parameter is: ");
Console.WriteLine(constructorInfoObj.ToString());
}
else
{
Console.WriteLine("The constructor of MyClass3 that is a public instance " +
"method and takes an integer as a parameter is not available.");
}
}
catch (ArgumentNullException e)
{
Console.WriteLine("ArgumentNullException: " + e.Message);
}
catch (ArgumentException e)
{
Console.WriteLine("ArgumentException: " + e.Message);
}
catch (SecurityException e)
{
Console.WriteLine("SecurityException: " + e.Message);
}
catch (Exception e)
{
Console.WriteLine("Exception: " + e.Message);
}
}
}
Public Class MyClass1
Public Sub New(ByVal i As Integer)
End Sub
Public Shared Sub Main()
Try
Dim myType As Type = GetType(MyClass1)
Dim types(0) As Type
types(0) = GetType(Integer)
' Get the public instance constructor that takes an integer parameter.
Dim constructorInfoObj As ConstructorInfo = _
myType.GetConstructor(BindingFlags.Instance Or _
BindingFlags.Public, Nothing, _
CallingConventions.HasThis, types, Nothing)
If Not (constructorInfoObj Is Nothing) Then
Console.WriteLine("The constructor of MyClass1 that " + _
"is a public instance method and takes an " + _
"integer as a parameter is: ")
Console.WriteLine(constructorInfoObj.ToString())
Else
Console.WriteLine("The constructor MyClass1 that " + _
"is a public instance method and takes an " + _
"integer as a parameter is not available.")
End If
Catch e As ArgumentNullException
Console.WriteLine("ArgumentNullException: " + e.Message)
Catch e As ArgumentException
Console.WriteLine("ArgumentException: " + e.Message)
Catch e As SecurityException
Console.WriteLine("SecurityException: " + e.Message)
Catch e As Exception
Console.WriteLine("Exception: " + e.Message)
End Try
End Sub
End Class
注解
本机调用约定是一组规则，用于控制传递给已编译方法的参数的顺序和布局。 它还控制如何传递返回值、要用于参数的寄存器，以及调用方法是否从堆栈中删除参数。
